Molding apparatus for battery strap-posts



G. P. WASHBURN.

NIOLDING APPARATUS FOR BATTERY STRAP POSTS. APPLICATION lFILED AUG-*25.1920.

` 1,392,884. Patented o@t.4,1921.

Y IN VEN TOR.

DHWashbumn A TTORNE YS GEORGE r, wAsHEURmoE Los ANGELES, CALIFORNIALeeaeea.

Specification of Letters Patent.

` MODDING APPARATUS FOR BATTERY STRAP-POSTS.

Patentes oet. a, roei.

Application iled August 25, 1920. Serial No. 405,785.

To aZZ whom 'it may concern.'

Be it known that I', GEORGE P. WASH- BURN, a citizen of the UnitedStates, residing at Los Angeles, in the county of Los Angeles and Stateof California, have invented new and useful Improvements in MoldingApparatus for Battery Strap- Posts, of which the following is aspecification.

It is the object of this invention to provide a molding apparatus ofsimplified'construction and efficient operation.

The device is, preferably, applicable to the molding of battery strapposts and the like, where it is desirable to mold articles which may bearranged with projections of one of said articles arranged betweenprojections of a coperating one of said articles. Thus for example, inthe production of battery'strap posts it is necessary to form certain ofsaid stra posts with projections one more in num er than the projectionsof others of said strap posts. By this arrangement two of the strapposts having the different number of projections are adapted to bebrought together in the battery with the projections of 'the respectivestrap posts received withm the spaces formed between the projections ofthe other strap posts.

The present invention contemplates means whereby shifting of a die inthe moldlng apparatus will readily adapt the same to the production ofbattery strap posts having either of the dierent number of projections.

The invention will be readily understood from the following descriptionof the accompanying drawings, in wh1ch- Figure 1 is a side elevation ofthe molding apparatus partially in vertical section.

Fig. 2 isa plan view of the same partly broken away.

Fig. 3 is a fragmentary front elevation of the molding die.

The `molding apparatus consists of a bed plate 1, preferably, supportedin an inclined position'as bymeans ofthe lugs 2; These lugs may be.provided` with screw openings 3 for mounting the apparatus upon asuitable base.

A movable plate 4 coperates withbed plate 1 and is rovided with arearward eX- tension `5 to w ich thefpivotal support for the plate isconnected. This pivotal sup-- port, preferably,

comprises a bell crank lever.

formed as a yoke having the shank 6 and the arms 7 positioned atopposite sides of projection 5. The bell crank lever is fulcrumed upon apin 8 extending through spaced bearing lugs 9 projecting from bedplate 1. The forward ends of the arms forming the bell crank lever arepivoted to projection 5 as by la pin 10. The shank 6 at the opposite endof the bell crank lever is provided with an operating lever 11,preferably, having a threaded engagement 13 within said Shank. 1

The end of projection 5 is received between lugs 9 and is provided withyan elon- {ated slot 14 through which pin 8 extends. y this arrangementit will be seen that when the bell crank lever isswung upon pivot 8 fromthe position shown in Fig. 1, the plate 4 will be -elevated by theconnection between the bell crank lever and the plate at pivot l0, theend of projection 5 at the same time sliding relative to pivot pin 8 bymeans of slot 14. When plate 4 has thus been elevated a suiiicientdistance to cause the lower end of slot 14 to abut against pivot pin 8,the continued swinging of the bell crank lever will swing said plateupon a pivot provided by pin 8. lt is thus possible to initiate themovement of plate 4 away from bed plate 1 perpendicular to themeetingyvslurfaces of said plates.

ien plate 4 is closed upon bed plate 1, as shown in Fig. 1,-a latchingmember is arranged to' retain the Swingin end of plate 4 relative to thebed plate. s an instance of this arrangement the latching member isshown as comprising a shank 16 pivoted by means of a pin 17 between lugs18 formed at the end of bed plate 1. The latching member'when inlatching position is arranged with its shank in substantially' uprightposition, said shank having a lug 19 projecting therefrom so as toengage over the end of bed plate 4. The shank is, preferably, providedwith a lever 11 for actuating the same, said lever, preferably, havingaV threaded connection with the shank as previously described for thelever 11.

Vhen it vis desired to release bed plate 4, the shank 16 isfswungoutwardly upon its pivot 1f? so as to swing lug 19 beyond the plate 4.rlhe shank is, preferably, provided with means for elevating plate 4from bed plate 1 as the shank is thus swung outwardly. As an instance ofthis arrangement a finger 2O is shown projecting from.

shank 16 beneath plate 4 and inl such position as to abut against andlift'plate 4 when the shank is swung upon its pivot.v

It will thus be seen that when it is desired to separate plate 4 frombed plate 1 it is only necessary to grasp handles 11 and 11a and swingthe same away from one another. As a result` plate 4 will be releasedand the lifting of the swinging end of plate 4 through the abutment offinger 20 and the simultaneous elevation ofthe rear portion of plate 4by the connection between arms7 and. projection 5 at pivot 10, willcause the initial movement of plate 4 away from bed plate 1 in adirection perpendicular to the meeting surfaces of said plates. By thisarrangement the article molded between the plates will be undisturbed bythe lmolding die as the plates are separated.

The mold provided between the coperating meeting surfaces of plates 1and 4 comprises a recess 21 in bed plate 1 and a die 22 carried by plate4 and projecting into said recess. A removable die 23 formed as a boreis also carried by plate 4 in order to form the. projecting supportingrod of a battery plate molded by the apparatus. The recess 21 extendsacross bed plate 1 and is arranged to mold the base of a battery strappost. This recess is, preferably, provided with a counter sunk recess 25arranged to mold a usual projection upon the base of the battery strappost.

The die 22 comprises spaced teeth 26 arranged to extend within recess 21in order to form the spaced projections of the battery strap post whichproject from the base thereof. This die is arranged to be shiftedtransversely relative to recess 21 and to be held in one or the other ofits operatable positions by means of set screws 27 extending throughplate 4 and engaging in one or the other of recesses 28--29 formed inthe die. With the die in one of its operatable positions, say theposition shown in Fig. 2, the teeth .26 of the die are so arrangedrelative to recess 21 as to mold a battery strap post having its baseprojections spaced inwardly from the ends of the base of said batterystrap post. A battery strap post having a certain number of projectionswill thus be formed.

When, now, it is desired to mold battery strap posts having a onegreater number of projections in order to form battery strap posts whichwill coperate with the battery strap posts first formed, the die 22 isshifted V to the other of its operative positions. This shift is justsufficient to move teeth 26 to the points formerly occupied by therecesses v 26a formed between said teeth.

With the die in this position a battery strap post will be molded havingits base projections at the ends of the base of the battery strap posttion for the battery strap post, preferably,

consists of'a cylinder extending through a suitable bore 31 of plate 4.This die cylinder is provided with a bore 32 adapted to mold thesupporting projection of the battery strap post extending from the baseof the same. The die cylinder is, preferably, retained in position by alip 33 upon the outer surface thereof engaged over the edge of the die22 when the latter is in position within plate,4. The die cylinder maybe held against longitudinal movement in the opposite direction by meansof the shoulder 34 upon the same.

It will thus be seen that the die may be readily removed and as quicklyplaced in position. In practice the bore 32 of the die may be ofl anydesired size and shape to molda battery strap post having any desiredtype of supporting projection, and by providing interchangeable dieshaving different types of bores, any desired battery strap may bereadily manufactured.

Various changes may be made without departing from the spirit of theinvention as claimed.

What is claimed is:

1. A molding apparatus for articles having spaced projections includinga die shiftable to form said articles with different numbers of teeth.

2. A molding apparatus for articles having spaced projections includinga die shift-y able to form said articles with one of two differentnumbers of 4teeth differing by one.

3. A molding apparatus for articles having spaced projections includinga die shiftable to form said articles differing so that their spacedprojections may intermesh.

4. A molding apparatus including spaced ymolding plates, said plateshaving a separavengaging the platev intermediate of its ends so as toperpendicularly lift the same away from the other plate and subsequentlyswing said plate upon its pivot.

olding apparatus including spaced 6. A m molding plates, said 5 pivotedconnection elevating adapted plates having a sliding at one end, meansfor one of said plates, said means to perpendicularly lift the platename to this specification. GEORGE P. WASHBURN.

